Posted: 18/02/2015 at 17:49
No, you do not put them in the garden straight away - though doubtless the company would love you to do that, so that you can buy them all over again April - May, when they should be sold. You will need to keep them warm, repot them into slightly larger pots, then again later on, water and coddle them for several weeks before you can even think about outdoors for such little babies. I've not even sown my seeds yet, never mind have plug plants ready to pot on.
I'm sorry, but I really think this is just a cynical ploy on the part of the vendors to get your money out of you twice!!
If you have a greenhouse, or huge warm light windowsills, and time to deal with lots of baby plants, then go ahead - if they all do well it will have been a bargain indeed.